Comment # 6 on bug 1198565 from Daniel Becker

I have secure boot. I did it now, as I described it.

However, error is the same (from dmesg output)
[    0.464781] ACPI BIOS Error (bug): Could not resolve symbol
[\_SB.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330)
[    0.464792] ACPI Error: Aborting method \_SB.PR01._CPC due to previous error
(AE_NOT_FOUND) (20211217/psparse-529)
[    0.464833] ACPI BIOS Error (bug): Could not resolve symbol
[\_SB.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330)
[    0.464839] ACPI Error: Aborting method \_SB.PR02._CPC due to previous error
(AE_NOT_FOUND) (20211217/psparse-529)
[    0.464878] ACPI BIOS Error (bug): Could not resolve symbol
[\_SB.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330)
[    0.464883] ACPI Error: Aborting method \_SB.PR03._CPC due to previous error
(AE_NOT_FOUND) (20211217/psparse-529)
[    0.464920] ACPI BIOS Error (bug): Could not resolve symbol
[\_SB.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330)
[    0.464925] ACPI Error: Aborting method \_SB.PR04._CPC due to previous error
(AE_NOT_FOUND) (20211217/psparse-529)
[    0.464961] ACPI BIOS Error (bug): Could not resolve symbol
[\_SB.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330)
[    0.464966] ACPI Error: Aborting method \_SB.PR05._CPC due to previous error
(AE_NOT_FOUND) (20211217/psparse-529)

uname -a
Linux quippy 5.17.3-1.ga63605c-default #1 SMP PREEMPT Thu Apr 14 04:56:56 UTC
2022 (a63605c) x86_64 x86_64 x86_64 GNU/Linux